Index: boot/Makefile.common
===================================================================
--- boot/Makefile.common	(revision 5d9fce40864ed86f410d7d8389986e88a96f0f79)
+++ boot/Makefile.common	(revision a94de68ac96389465a51e5e16fa8575f4f81357f)
@@ -119,6 +119,8 @@
 	$(USPACE_PATH)/srv/taskmon/taskmon
 
-RD_DRVS = \
-	infrastructure/root \
+RD_DRVS_ESSENTIAL = \
+	infrastructure/root
+
+RD_DRVS_NON_ESSENTIAL = \
 	infrastructure/rootvirt \
 	fb/kfb \
@@ -170,4 +172,5 @@
 	$(USPACE_PATH)/app/killall/killall \
 	$(USPACE_PATH)/app/loc/loc \
+	$(USPACE_PATH)/app/mixerctl/mixerctl \
 	$(USPACE_PATH)/app/logset/logset \
 	$(USPACE_PATH)/app/mkfat/mkfat \
@@ -232,7 +235,9 @@
 RD_SRVS = $(RD_SRVS_ESSENTIAL)
 RD_APPS = $(RD_APPS_ESSENTIAL)
+RD_DRVS = $(RD_DRVS_ESSENTIAL)
 else
 RD_SRVS = $(RD_SRVS_ESSENTIAL) $(RD_SRVS_NON_ESSENTIAL)
 RD_APPS = $(RD_APPS_ESSENTIAL) $(RD_APPS_NON_ESSENTIAL)
+RD_DRVS = $(RD_DRVS_ESSENTIAL) $(RD_DRVS_NON_ESSENTIAL)
 endif
 
Index: boot/arch/amd64/Makefile.inc
===================================================================
--- boot/arch/amd64/Makefile.inc	(revision 5d9fce40864ed86f410d7d8389986e88a96f0f79)
+++ boot/arch/amd64/Makefile.inc	(revision a94de68ac96389465a51e5e16fa8575f4f81357f)
@@ -28,4 +28,6 @@
 
 RD_SRVS_ESSENTIAL += \
+	$(USPACE_PATH)/srv/audio/hound/hound \
+	$(USPACE_PATH)/srv/devman/devman \
 	$(USPACE_PATH)/srv/hw/irc/apic/apic \
 	$(USPACE_PATH)/srv/hw/irc/i8259/i8259
@@ -34,12 +36,15 @@
 	$(USPACE_PATH)/srv/bd/ata_bd/ata_bd
 
-RD_DRVS += \
+RD_DRVS_ESSENTIAL += \
 	infrastructure/rootpc \
 	bus/pci/pciintel \
 	bus/isa \
+	audio/sb16 \
 	char/i8042 \
+	char/ps2mouse \
+	char/xtkbd
+
+RD_DRVS_NON_ESSENTIAL += \
 	char/ns8250 \
-	char/ps2mouse \
-	char/xtkbd \
 	time/cmos-rtc \
 	bus/usb/ehci\
@@ -57,4 +62,9 @@
 	bus/isa
 
+RD_APPS_ESSENTIAL += \
+	$(USPACE_PATH)/app/edit/edit \
+	$(USPACE_PATH)/app/mixerctl/mixerctl \
+	$(USPACE_PATH)/app/wavplay/wavplay \
+	
 BOOT_OUTPUT = $(ROOT_PATH)/image.iso
 PREBUILD = $(INITRD).img